438 lines
9.8 KiB
C++
438 lines
9.8 KiB
C++
/*++
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Copyright (C) 1999-2001 Microsoft Corporation
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Module Name:
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Abstract:
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History:
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--*/
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#include <windows.h>
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#include <stdio.h>
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DWORD g_aData[] =
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{
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};
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#define NUM_DATA (sizeof(g_aData)/sizeof(DWORD))
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#define LARGE_PRIME 2147483659
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DWORD HashKey(char* szKey)
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{
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DWORD n = 1;
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while(*szKey)
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{
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n = n * (2*(DWORD)*szKey + 1);
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szKey++;
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}
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return n % LARGE_PRIME;
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}
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LPSTR GetText(LPSTR szKey)
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{
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LPSTR szResult = new char[NUM_DATA*2+4];
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DWORD* pdwResult = (DWORD*)szResult;
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DWORD dwKey = HashKey(szKey);
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for(int i = 0; i < NUM_DATA; i+=2)
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{
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__int64 i64A = g_aData[i];
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__int64 i64B = g_aData[i+1];
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__int64 i64Res = (i64A*dwKey + i64B) % LARGE_PRIME;
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*pdwResult = (DWORD)i64Res;
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pdwResult++;
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}
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*pdwResult = 0;
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return szResult;
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}
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BOOL CheckText(char* szText)
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{
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while(*szText)
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{
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if (*szText < 8 || *szText > 127)
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return FALSE;
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szText++;
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}
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return TRUE;
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}
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void main()
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{
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printf("Key: ");
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char szKey[100];
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scanf("%s", szKey);
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LPSTR szResult = GetText(szKey);
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if(!CheckText(szResult))
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printf("INVALID!\n");
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else
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printf("%s\n", szResult);
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}
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